Important Note:Battery is not included with the motor-only option.
If you do not already have a compatible battery, please choose a combo package with battery for a complete setup.
K4S Sport is a high-performance electric SUP & kayak motor designed for faster rides, longer journeys, and more demanding on-water use. Built for SUP boards, kayaks, inflatable boats, canoes, and other small watercraft, it delivers stronger electric propulsion for riders who want more speed, more range potential, and more confidence on the water.
K4S Sport is made for riders who need more than basic electric assist. Whether you are planning longer-distance cruising, covering water routes more efficiently, or reaching farther fishing spots, it is built to deliver stronger performance and a more capable riding experience.
K4S Sport comes with wireless remote control for easier speed adjustment, steering input, and on-water control. With one-touch cruise control and real-time riding information, it helps make longer or more active trips smoother and easier to manage.
Despite its stronger output, K4S Sport keeps a compact and lightweight form for easier transport and setup. Its standard 9-inch quick-release fin design supports tool-free installation and removal, making it practical for riders who want both performance and convenience.
From long-distance cruising to fishing sessions and more performance-focused water activities, K4S Sport is built for riders who want faster and longer journeys with stronger electric support.
Watch our step-by-step installation guide to get started in minutes. Plus, explore real-world scenarios and see how the K4 transforms your kayaking、SUP and fishing experience.
1500W Brushless Power | 21.5 KG Thrust | Wireless Remote | Portable Design
Powered by a 1500W high-efficiency brushless permanent magnet motor, delivering robust thrust with a top speed of 14.5 km/h. Features three operating modes for seamless switching: variable speed control to meet diverse riding needs.
Equipped with aviation-grade metal steering servos for precise left/right turns, empowering you to conquer waves with ease and experience the thrill of gliding across water.
K4S SUP/kayak motor adopts advanced wireless control tech, which breaks free from traditional cable constraints for freer operation. With one-click pairing via the dedicated remote controller, you can start your water exploration journey effortlessly. The handheld remote enables agile steering with millisecond-level response.
Compact and lightweight at just 1780g. Features a standard 9-inch quick-release fin for tool-free installation/removal. Compatible with all small watercraft (inflatable boats, kayaks, canoes, transparent vessels, etc.) and SUP boards of various specifications.
Tedgix K4S Sport is built for longer routes, faster movement, and more efficient water journeys when your target lies beyond casual cruising distance.
Comes with wireless remote for effortless speed and steering adjustment with precise handling. One-touch cruise control makes operation easier, even for beginners. With IP68 waterproof protection and real-time ride data display, the remote is built to support more confident everyday use on the water.
The K4S motor requires one of the compatible waterproof batteries below to operate. Please choose B15, B20, or B30 based on your riding distance, power needs, and actual usage requirements.
The waterproof battery supports K4S Sport operation and also provides charging, discharging, and water-use features for outdoor conditions.
TYPE-C PD3.0 bidirectional fast charging not only enables high-power discharge, but also can quickly charge phones, laptops, drones and other mobile devices.
Allowing you to navigate the water without worries
A high-performance SUP and kayak propulsion system built for stronger thrust, faster rides, agile control, and saltwater-ready use.
Key performance, size, mounting, and operating specifications for K4S Sport.
21.5kg
1500W
45-55V
<30A
14.5km/h+
5-8km/h
1780g
±30°
Slide-In Quick-release Track
(Includes US BOX Adapter And Other Accessories)
Saltwater & Freshwater
This product can be used in both freshwater and saltwater. You must rinse it with freshwater after saltwater use, otherwise the machine's lifespan will be affected. When not in use, remove the main unit and battery and store them indoors. Try to avoid leaving it submerged in water for extended periods when not in use.
Please refer to the Warranty Agreement. K4S Sport includes a 1-year warranty and lifetime repair support.
| Battery Model | Capacity | 5km/h Cruise (3.1mph) |
9.5km/h Cruise (6mph) |
13.5km/h Cruise (8.39mph) |
|---|---|---|---|---|
| B20 | 1920wh | 18h | 5h | 80min |
Everything included with the K4S Sport package for motor control, remote operation, signal receiving, and US-BOX mounting support.
The standard package includes the K4S Sport main unit, remote control, signal receiving box, and US-BOX.
Return to the top purchase section, choose your preferred configuration, and complete your order.
K4C
K4S
K5